The song "わかっちゃない" by MAISONdes ft. あたし & zumiTa talks about feeling disconnected from the world and struggling to understand oneself and others. The lyrics express a sense of discomfort with living in a world where communication is lacking and feelings of loneliness and confusion are prevalent. The singers express a desire for understanding and a longing for a more fulfilling life, but also acknowledge their own shortcomings and struggles. Throughout the song, there is a theme of not knowing or understanding, as seen in the repeated refrain of "わかってない" (Wakattenai), which means "I don't know" or "I don't understand." The singers question their place in the world and ponder what they should do in a confusing and melancholic existence. The lyrics also touch on themes of deception, self-doubt, and the desire to escape from the pain and confusion of life. The singers express a longing to disappear into the unknown and find peace away from the difficulties of existence. Overall, "わかっちゃない" is a contemplative and introspective song that delves into the complexities of human emotions and the struggle for understanding in a world filled with uncertainty and confusion.